<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>refs</title>
  </head>

  <body>
    <!--  -->
    <!-- 准备好一个“容器” -->
    <div id="test"></div>
    <div id="test2"></div>

    <!-- 引入react核心库 -->
    <script type="text/javascript" src="js/react.development.js"></script>
    <!-- 引入react-dom，用于支持react操作DOM -->
    <script type="text/javascript" src="js/react-dom.development.js"></script>
    <!-- 引入babel，用于将jsx转为js -->
    <script type="text/javascript" src="js/babel.min.js"></script>
    <!-- <script src="./change_weather.js"></script> -->
  </body>
  <script src="./js/prop-types.js"></script>
  <script type="text/babel">
    class Runner extends React.Component {
      inputRef = React.createRef();
      inputRef2 = React.createRef();
      showData = () => {
        console.log(this.inputRef.current);
        console.log(this.inputRef.current.value);
      };
      showData2 = () => {
        console.log(this.inputRef2.current);
        console.log(this.inputRef2.current.value);
      };

      render() {
        return (
          <div>
            <input ref={this.inputRef} onClick={this.showData} />
            <br />
            <br />
            <input ref={this.inputRef2} onBlur={this.showData2} />
          </div>
        );
      }
    }
    ReactDOM.render(<Runner />, document.getElementById("test"));
  </script>
</html>
